Home / 143,876,726.48-198,549,742.56-77,797,066.52

Finding the Fourth Proportional to 143,876,726.48, 198,549,742.56 and 77,797,066.52

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Solution

The fourth proportional to 143,876,726.48, 198,549,742.56 and 77,797,066.52 is: 107,359,876.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,876,726.48 : 198,549,742.56 = 77,797,066.52 : x
  2. Step 2: Convert to fraction form
    143,876,726.48/198,549,742.56 = 77,797,066.52/x
  3. Step 3: Cross multiply
    143,876,726.48x = 198,549,742.56 × 77,797,066.52
  4. Step 4: Simplify right side
    143,876,726.48x = 15,446,587,529,469,194
  5. Step 5: Solve for x
    x = 15,446,587,529,469,194/143,876,726.48
  6. Step 6: Final answer
    x = 107,359,876.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.